Core Viewpoint - The Shenzhen Park Management Center emphasizes the importance of natural food sources for migratory birds in Shenzhen Bay and the negative consequences of human feeding on these birds and the ecosystem [1][2]. Group 1: Ecological Importance - Shenzhen Bay serves as a critical node in the East Asia-Australasia migratory route and is recognized as a "five-star station" for migratory birds [1]. - The natural food sources, such as small fish and crabs, provide essential nutrients that support the long-distance migration of birds [1]. Group 2: Negative Impacts of Human Feeding - Feeding birds with high-carbohydrate foods like bread can lead to malnutrition and kidney damage, and may cause birds to lose their natural foraging abilities [1]. - Artificial feeding disrupts the delicate ecological balance of the intertidal zone, potentially leading to unforeseen ecological chain reactions [1]. - Close proximity feeding increases the risk of disease transmission among birds and between birds and humans [1]. Group 3: Legal and Regulatory Framework - The National Forestry and Grassland Administration has issued guidelines prohibiting feeding migratory birds to prevent delays in their migration [2]. - Shenzhen's regulations explicitly forbid the feeding of wild animals, and park staff are tasked with enforcing these rules [2]. Group 4: Alternative Management Approaches - Other cities like Qingdao and Kunming are implementing scientific feeding management, using specialized bird feed that meets nutritional standards [2].